CN104312179B - Anti-rut agent - Google Patents
Anti-rut agent Download PDFInfo
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- CN104312179B CN104312179B CN201410653081.5A CN201410653081A CN104312179B CN 104312179 B CN104312179 B CN 104312179B CN 201410653081 A CN201410653081 A CN 201410653081A CN 104312179 B CN104312179 B CN 104312179B
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- rut
- rut agent
- fatty acid
- asphalt
- polyphenylene sulfide
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Abstract
An anti-rut agent consists of 100 parts by weight of polyolefin, 1-5 parts by weight of reactivity surfactant and 2-10 parts by weight of polyphenylene sulfide, wherein the surfactant is of a side chain structure, the melting point of the polyolefin is 80-130 DEG C, and the average molecular weight of the polyphenylene sulfide is between 10,000 and 50,000. As the polyphenylene sulfide has a high smelting point, the polyolefin is promoted to form a network structure in asphalt with the polyphenylene sulfide as a nucleation center, and the anti-rut performance of an asphalt mixture is improved.
Description
Technical field
The present invention relates to anti-rut agent and in particular to patent ipc classification c08l95/00.
Background technology
Asphalt pavement rut refers to longitudinal banding groove more than 10mm for the depth at wheelmark.According to " highway technology situation is commented
Calibrate quasi- jtg h20-2007 ", by the depth of rut groove, light rut and two kinds of loaded vehicle rut can be divided into, light rut rut groove is shallow, and depth exists
Between 10～15mm；Loaded vehicle rut rut groove depth, more than depth 15mm.According to the experience of existing rut treatment in recent years, by rut groove
Depth, can be divided into slight rut, moderate rut, three kinds of severe rut again, and slight rutting depth is less than 10～15mm, mainly presses
Close type rut；Moderate rutting depth 15～35mm, mainly flow model rut；Severe rutting depth is more than 35mm, mainly flows
Ejector half rut and structural type rut.The reason form rut mainly has asphalt pavement structure to combine improper, the anti-car of asphalt
Rut performance is bad, traffic and weather conditions etc..The performance of asphalt is mainly asphalt material property, mineral aggregate characteristic, Colophonium
Consumption and gradation types；Traffic and the impact of weather conditions mainly traffic loading, longitudinal gradient impact and temperature；Construction quality is main
Be compactness and interlaminar bonding bad the problems such as.
Asphalt pavement rut control measure typically have three kinds: (1) pavement structure improvement: by rational Pavement Structure Combination
Design improves overall anti-rut behavior, such as overlays high-performance semi-flexible context layer, large grain diameter water permeability in middle cutting optimal or basic unit
Asphalt (lspm), high-modulus asphalt concrete；(2) bituminous concrete Optimising aggregate gradation: joined by rational level and
Bitumen aggregate ratio designs, and Asphalt Mixture Design is become the mineral aggregate gradation of high anti-rut behavior；(3) material is preferred: from low grade drip
Blue or green, hard grades of bitumen or modified pitch, adopt that surface microroughness is big, hard simultaneously, shape close to cube, corner angle good,
The coarse aggregate strong with asphalt adhesion and Machine-made Sand；(4) add anti-rut agent etc. in asphalt.Existing anti-both at home and abroad
Rut agent species is various, and volume and Rut resistance effect are also uneven, and existing anti-rut agent is respectively provided with certain Rut resistance
Can, but under the conditions of heavy load, it is not enough to there is toughness, recoverable force ability, and the problems such as wear no resistance, road surface anti-
Rut performance is not ideal enough.
Accordingly, it would be desirable to a kind of new anti-rut agent for asphalt pavements, it is possible to increase the toughness of bituminous paving, improves heavy load
Under the conditions of recoverable force ability, improve the wearability on road surface and weatherability, and then improve the rutting resistance of bituminous paving.
Content of the invention
In order to solve above-mentioned technical problem, in a first aspect, the present invention provides a kind of anti-rut agent, by polyolefin 100 weight
Part, reactive surfactant 1-5 weight portion and polyphenylene sulfide 2-10 weight portion composition, described surfactant is to have side chain
The surfactant of structure, at 80-130 degree Celsius, the mean molecule quantity of described polyphenylene sulfide exists described polyolefinic fusing point
Between 10000-50000.
Described polyolefinic melt index is more than 0.1g/10 minute, the resin below 5g/10 minute.Melt index, be
According to gb/t 3682-2000, the value recording under 190 DEG C of temperature, load 2.16kg.
Described surfactant is selected from polyoxyalkylene fatty acid ester, polyoxyalkylene alkyl, polyoxyalkylene (hydrogenation) Semen Ricini
Oil, sucrose fatty acid ester, alkyl glycerylether, polyglycerol alkyl ether, polyglyceryl fatty acid ester, fatty acid glyceride, fatty acid alkane
Alkylolamides, alkyl androstanediol, sorbitan fatty acid ester, polyoxyalkene sorbitan fatty acid ester, polyoxyalkylene Pyrusussuriensiss
One or more of sugar alcohol fatty acid ester, polyoxyalkylene fatty acid glyceride.
The side-chain structure of described surfactant is selected from 2- ethylhexyl, isodecyl, 2- butyl dodecyl, 2- heptyl ten
One alkyl, 2- different heptylundecanoic base, the different undecyl of the different heptyl of 2-, 2- dodecyl hexyl, 2- octyldodecyl, different hard
One or more of aliphatic radical, octyldodecyl, decyl myristyl.
Described anti-rut agent also includes the reactive surfactant simultaneously with mercapto groups for having c-c double bond.
Second aspect, the present invention provides the preparation method of anti-rut agent, comprises the following steps:
The anti-rut agent of first aspect is provided；
Polyolefin and polyphenylene sulfide are warming up to 270-290 degree Celsius, after being cooled to 140-170 degree Celsius, add reaction
Property surfactant be sufficiently mixed dispersion so that polyolefine polyphenylene sulfide, obtain anti-rut agent.
The third aspect, the present invention provides asphalt, including the anti-rut agent of first aspect.
Asphalt according to the third aspect, described anti-rut agent accounts for the 0.1%-1% of asphalt gross mass.
Fourth aspect, the present invention provides the preparation method of asphalt, comprises the following steps:
Asphalt described in the third aspect is provided；
Asphalt is warming up to 150-200 degree Celsius, obtains asphalt.
Because polyphenylene sulfide has higher fusing point, the present invention is used as nuclearing centre by polyphenylene sulfide, promotes polyolefin
Form network structure in Colophonium, improve the anti-rut behavior of asphalt.
Specific embodiment
Anti-rut agent, by polyolefin 100 weight portion, reactive surfactant 1-5 weight portion and polyphenylene sulfide 2-10 are heavy
Amount part composition, described surfactant is the surfactant with side-chain structure, and described polyolefinic fusing point is taken the photograph in 80-130
Family name's degree, the mean molecule quantity of described polyphenylene sulfide is between 10000-50000.
Because polyphenylene sulfide has higher fusing point, the present invention is used as nuclearing centre by polyphenylene sulfide, promotes polyolefin
Form more network structures in Colophonium, improve the anti-rut behavior of asphalt.
As a kind of preferred embodiment, polyolefin of the present invention is polypropylene, high density polyethylene (HDPE), straight-chain are low
Density polyethylene, Low Density Polyethylene, ultra-low density polyethylene, alpha-olefin (co) polymer, ethylene-vinyl acetate c
In thing, ethylene-ethyl acrylate copolymer, ethylene-propylene copolymer rubber, Ethylene-Propylene-Diene terpolymer rubber at least
A kind of.
In the present invention, alpha-olefin (co) polymer refers to ethylene, propylene, 1-butylene, 4-methyl-1-pentene, 1- hexene, 1-
The homopolymer of alpha-olefin such as heptene, 1- octene, 1- nonene, 1-decene or mutual copolymer, or ethylene and these alpha-olefins
Copolymer, or their mixture.Alpha-olefin (co) polymer, vinyl-vinyl acetate copolymer, ethylene-acrylic acid second
Ester copolymer can be next modified by acid, can use unsaturated carboxylic acid, its derivant etc..Specifically, can as unsaturated carboxylic acid
Enumerate maleic acid, fumaric acid etc., additionally, the derivant as unsaturated carboxylic acid is maleic anhydride, maleic mono-ester, maleic acid two
Ester etc..Preferably maleic acid, maleic anhydride.They using one kind, or two or more can be used in combination.
As straight-chain Low Density Polyethylene system used in the present invention resin, for example more preferably fusing point be more than 115 DEG C,
Less than 130 DEG C, density is more than 0.915g/cm3, below 0.940g/cm3, and melt index is more than 0.1g/10 minute, 5g/10
Resin below minute.Melt index, is according to gb/t 3682-2000, records under 190 DEG C of temperature, load 2.16kg
Value.
Straight-chain Low Density Polyethylene system used in the present invention resin can contain in addition to ethylene can be with ethylene
The comonomer of copolymerization.As can be with the comonomer of ethylene copolymer, it is possible to use carbon number is more than 4, less than 18 α-alkene
Hydrocarbon, for example, can enumerate 1-butylene, 1- amylene, 1- hexene, 3,3- dimethyl -1-butylene, 4-methyl-1-pentene, 4,4- diformazan
Base -1- amylene, 1- octene etc..These comonomers can only be used, or two or more may be used.
As Low Density Polyethylene system used in the present invention resin, for example more preferably fusing point is more than 100 DEG C, 120 DEG C
Hereinafter, density is more than 0.910g/cm3, below 0.930g/cm3, and melt index is more than 0.1g/10 minute, 100g/10 divides
Resin below clock.It is according to gb/t 3682-2000, the value recording under 190 DEG C of temperature, load 2.16kg.
Low Density Polyethylene system used in the present invention resin can contain in addition to ethylene can be with ethylene copolymer
Comonomer.As can be with the comonomer of ethylene copolymer, it is possible to use carbon number is more than 4, less than 18 alpha-olefin, such as
1-butylene, 1- amylene, 1- hexene, 3,3- dimethyl -1-butylene, 4-methyl-1-pentene, 4,4- dimethyl -1- penta can be enumerated
Alkene, 1- octene etc..These comonomers can only be used, or two or more may be used.
It is selected from polyoxyalkylene fatty acid ester, polyoxyalkylene alkyl, polyoxyalkylene (hydrogen using surfactant in the present invention
Change) Oleum Ricini, sucrose fatty acid ester, alkyl glycerylether, polyglycerol alkyl ether, polyglyceryl fatty acid ester, fatty acid glyceride, fat
Fat acid alkanolamide, alkyl androstanediol, sorbitan fatty acid ester, polyoxyalkene sorbitan fatty acid ester, polyoxygenated
One or more of alkene sorbitan fatty acid ester, polyoxyalkylene fatty acid glyceride.
The surfactant with side-chain structure preferably has at least one branched alkyl, more preferably has carbon number and is
8～22 branched alkyl.The branched alkyl being 8～22 as carbon number, specifically, can enumerate 2- ethylhexyl, different
Decyl, 2- butyl dodecyl, 2- heptylundecanoic base, 2- different heptylundecanoic base, the different undecyl of the different heptyl of 2-, 2- 12
One or more of alkyl hexyl, 2- octyldodecyl, iso stearyl, octyldodecyl, decyl myristyl.Optional
The trade mark selected be penetol ge-eh(spend king), ge-id(spend king).
By Electronic Speculum as can be seen that the formation of polyolefinic threadlike network structure has the raising beneficial to anti-rut behavior, because
For steric effect it is believed that side-chain structure can promote formation around pps for the polyolefin cross-linked network so that polyolefin is crosslinked
More elasticity.
Described anti-rut agent also includes the reactive surfactant simultaneously with mercapto groups for having c-c double bond
1-5 weight portion.As 9,12- octadecane dienoic acids -2 mercapto ethanol ester etc..
The polyphenylene sulfide of the present invention is the polymer with the repetitives being represented by-(ph-s)-.In above-mentioned, ph represents
Phenylene, s represent sulphur atom.Generally, polyphenylene sulfide is classified as cross-linking type polyphenylene sulfide and linear polyphenylthioether resin.
Cross-linking type polyphenylene sulfide refers to make it crosslinked using heat treatment in the presence of oxygen and improves the tree of melt viscosity
Fat.Linear polyphenylthioether resin is that lithium chloride, acylate and water etc. are added in polymerization system, does not make them crosslinked
And improve the resin of molecular weight.The present invention is selected from linear polyphenylthioether.As the phenylene constituting polyphenylene sulfide, it is right to enumerate
Phenylene, metaphenylene, adjacent phenylene, alkyl substituted phenylene, phenyl substituted phenylene, halogen substiuted phenylene, amino take
For phenylene, amide substituted phenylene, p, p '-diphenylene sulfone, p, p '-biphenylene, p, p '-biphenylene ether, p, p '-Asia
Biphenylcarbonyl, naphthalene etc..
Homopolymer that polyphenylene sulfide comprises to be made up of identical repetitives, it is made up of different phenylene of more than two kinds
Copolymer or both.When polyphenylene sulfide is copolymer, the repetition with the repetitives to diphenyl sulfide and a diphenyl sulfide can be enumerated
The random or block copolymer of unit；There are the repetitives of diphenyl sulfide and the random or block of the repetitives of benzophenone thioether is common
Polymers；There is the random or block copolymer of the repetitives of diphenyl sulfide and the repetitives of benzophenone ketone thioether；There is diphenyl sulfide
Repetitives and diphenyl sulfide sulfone repetitives random or block copolymer.These polyphenylene sulfides are preferably crystallinity
Polymer.The melt flow rate (MFR) in 290 DEG C of temperature for the polyphenylene sulfide is preferably more than 40g/10min, more preferably 50-
More than 100g/10min.
Polyphenylene sulfide can be using making alkali metal sulphide and two halogen substituted aromatic compounds enter in polar solvent
The known method of row polyreaction and obtain.Also can be obtained using melt phase polycondensation by iodine compound and sulphur compound.This 2
The method of kind is all known method.
Second aspect, the present invention provides the preparation method of anti-rut agent, comprises the following steps:
The anti-rut agent of first aspect is provided；
Under the atmosphere of isolation air or nitrogen, polyolefin and polyphenylene sulfide are warming up to 270-290 degree Celsius, are cooled to
After 140-170 degree Celsius, add surfactant and reactive surfactant is sufficiently mixed dispersion so that polyolefine gathers
Diphenyl sulfide, obtains anti-rut agent.
The third aspect, the present invention provides asphalt, including the anti-rut agent of first aspect.
Asphalt according to the third aspect, described anti-rut agent accounts for the 0.1%-1% of asphalt gross mass.
Fourth aspect, the present invention provides the preparation method of asphalt, comprises the following steps:
Asphalt described in the third aspect is provided；
Asphalt is warming up to 150-200 degree Celsius, obtains asphalt.
Evaluation methodology:
Needle penetration, 25 degrees Celsius, 100g, 5s, unit 0.1mm, test method: t0604-2011.
Embodiment 1
Polyolefin 100 weight portion
Surfactant 2 weight portion
Polyphenylene sulfide 8 weight portion
Polyolefin is linear low density polyethylene, sinopec dfdc-7570, and surfactant is penetol ge-id, gathers
Diphenyl sulfide, torelina a670x01 toray.
Polyolefin and polyphenylene sulfide are warming up to 280 degrees Celsius, after being cooled to 140-170 degree Celsius, add surface activity
Agent and reactive surfactant are sufficiently mixed dispersion so that polyolefine polyphenylene sulfide, obtain anti-rut agent.With above-mentioned system
The anti-rut agent obtaining and Colophonium are raw material, are warming up to 150-170 degree Celsius, prepared modified pitch.
With above-mentioned prepared modified pitch as cementitious matter, in accordance with China's " standard specification for construction and acceptance of highway asphalt pavement " f40-
2004, asphalt, wherein, Colophonium are obtained for bridge deck pavement asphalt type with bituminous concrete moxture sma-5
Account for the 6% of asphalt gross weight.The modifying agent of Colophonium accounts for the 1% of asphalt gross weight.
Embodiment 2
Polyolefin 100 weight portion
Surfactant 1 weight portion
Polyphenylene sulfide 10 weight portion
Polyolefin is polyethylene, Qatar's petrochemical industry, mg70, and surfactant is penetol ge-eh, polyphenylene sulfide,
Torelina a670x01 toray.
Polyolefin and polyphenylene sulfide are warming up to 280 degrees Celsius, after being cooled to 140-170 degree Celsius, add surface activity
Agent and reactive surfactant are sufficiently mixed dispersion so that polyolefine polyphenylene sulfide, obtain anti-rut agent.With above-mentioned system
The anti-rut agent obtaining and Colophonium are raw material, are warming up to 150-170 degree Celsius, prepared modified pitch.
With above-mentioned prepared modified pitch as cementitious matter, in accordance with China's " standard specification for construction and acceptance of highway asphalt pavement " f40-
2004, asphalt, wherein, Colophonium are obtained for bridge deck pavement asphalt type with bituminous concrete moxture sma-5
Account for the 6% of asphalt gross weight.The modifying agent of Colophonium accounts for the 1% of asphalt gross weight.
Embodiment 3
Polyolefin 100 weight portion
Surfactant 3 weight portion
Polyphenylene sulfide 3 weight portion
Polyolefin is polyethylene, Qatar's petrochemical industry, mg70, and surfactant is penetol ge-eh, polyphenylene sulfide,
Torelina a670x01 toray.
Polyolefin and polyphenylene sulfide are warming up to 280 degrees Celsius, after being cooled to 140-170 degree Celsius, add surface activity
Agent and reactive surfactant are sufficiently mixed dispersion so that polyolefine polyphenylene sulfide, obtain anti-rut agent.With above-mentioned system
The anti-rut agent obtaining and Colophonium are raw material, are warming up to 150-170 degree Celsius, prepared modified pitch.
With above-mentioned prepared modified pitch as cementitious matter, in accordance with China's " standard specification for construction and acceptance of highway asphalt pavement " f40-
2004, asphalt, wherein, Colophonium are obtained for bridge deck pavement asphalt type with bituminous concrete moxture sma-5
Account for the 6% of asphalt gross weight.The modifying agent of Colophonium accounts for the 1% of asphalt gross weight.
Embodiment 4
Polyolefin 100 weight portion
Surfactant 2 weight portion
Polyphenylene sulfide 8 weight portion
9,12- octadecane dienoic acid -2 mercapto ethanol ester 1 weight portion
Polyolefin is linear low density polyethylene, sinopec dfdc-7570, and surfactant is penetol ge-id, gathers
Diphenyl sulfide, torelina a670x01 toray.
Polyolefin and polyphenylene sulfide are warming up to 280 degrees Celsius, after being cooled to 140-170 degree Celsius, add surface activity
Agent and reactive surfactant are sufficiently mixed dispersion so that polyolefine polyphenylene sulfide, obtain anti-rut agent.With above-mentioned system
The anti-rut agent obtaining and Colophonium are raw material, are warming up to 150-170 degree Celsius, prepared modified pitch.
With above-mentioned prepared modified pitch as cementitious matter, in accordance with China's " standard specification for construction and acceptance of highway asphalt pavement " f40-
2004, asphalt, wherein, Colophonium are obtained for bridge deck pavement asphalt type with bituminous concrete moxture sma-5
Account for the 6% of asphalt gross weight.The modifying agent of Colophonium accounts for the 1% of asphalt gross weight.
Comparative example 4
Polyolefin 100 weight portion
Polyphenylene sulfide 8 weight portion
Polyolefin is linear low density polyethylene, sinopec dfdc-7570, and surfactant is penetol ge-id, gathers
Diphenyl sulfide, torelina a670x01 toray.
Polyolefin and polyphenylene sulfide are warming up to 280 degrees Celsius, after being cooled to 140-170 degree Celsius, add surface activity
Agent and reactive surfactant are sufficiently mixed dispersion so that polyolefine polyphenylene sulfide, obtain anti-rut agent.With above-mentioned system
The anti-rut agent obtaining and Colophonium are raw material, are warming up to 150-170 degree Celsius, prepared modified pitch.
With above-mentioned prepared modified pitch as cementitious matter, in accordance with China's " standard specification for construction and acceptance of highway asphalt pavement " f40-
2004, asphalt, wherein, Colophonium are obtained for bridge deck pavement asphalt type with bituminous concrete moxture sma-5
Account for the 6% of asphalt gross weight.The modifying agent of Colophonium accounts for the 1% of asphalt gross weight.
Performance is as follows.
Claims (8)
1. anti-rut agent, by polyolefin 100 weight portion, reactive surfactant 1-5 weight portion and polyphenylene sulfide 2-10 weight
Part composition, described surfactant is the surfactant with side-chain structure, and described polyolefinic fusing point is Celsius in 80-130
Degree, the mean molecule quantity of described polyphenylene sulfide is between 10000-50000.
2. anti-rut agent according to claim 1 is it is characterised in that described polyolefinic melt index is divided for 0.1g/10
More than clock, below 5g/10 minute, described melt index, is according to gb/t 3682-2000, in 190 DEG C of temperature, load 2.16kg
Under the value that records.
3. anti-rut agent according to claim 1 has side-chain structure it is characterised in that described surfactant is selected from
Polyoxyalkylene fatty acid ester, polyoxyalkylene alkyl, polyoxyalkylene (hydrogenation) Oleum Ricini, sucrose fatty acid ester, alkyl glycerylether,
Polyglycerol alkyl ether, polyglyceryl fatty acid ester, fatty acid glyceride, fatty acid alkanol amides, alkyl androstanediol, sorbitan
Fatty acid ester, polyoxyalkene sorbitan fatty acid ester, polyoxyalkylene sorbitan alcohol fatty acid ester, polyoxyalkylene glycerin fatty
One or more of acid esters.
4. anti-rut agent according to claim 1 is it is characterised in that the side-chain structure of described surfactant is selected from 2- second
Base hexyl, isodecyl, 2- butyl dodecyl, 2- heptylundecanoic base, 2- different heptylundecanoic base, the different hendecane of the different heptyl of 2-
One of base, 2- dodecyl hexyl, 2- octyldodecyl, iso stearyl, octyldodecyl, decyl myristyl or
Several.
5. anti-rut agent according to claim 1 is it is characterised in that described anti-rut agent also includes with c-c double bond,
There is the reactive surfactant of mercapto groups simultaneously.
6. the preparation method of anti-rut agent, comprises the following steps:
Anti-rut agent described in any one claim in claim 1-5 is provided；
Polyolefin and polyphenylene sulfide are warming up to 270-290 degree Celsius, after being cooled to 140-170 degree Celsius, add reactive table
Face activating agent is sufficiently mixed dispersion so that polyolefine polyphenylene sulfide, obtains anti-rut agent.
7. asphalt, including the anti-rut agent described in any one claim in claim 1-6.
8. asphalt according to claim 7 is it is characterised in that described anti-rut agent accounts for asphalt gross mass
0.1%-1%.
Priority Applications (1)
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| CN201410653081.5A CN104312179B (en) | 2014-11-18 | 2014-11-18 | Anti-rut agent |
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|---|---|---|---|
| CN201410653081.5A CN104312179B (en) | 2014-11-18 | 2014-11-18 | Anti-rut agent |
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| CN104312179B true CN104312179B (en) | 2017-01-18 |
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| CN201410653081.5A Expired - Fee Related CN104312179B (en) | 2014-11-18 | 2014-11-18 | Anti-rut agent |
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| CN107011691A (en) * | 2017-05-18 | 2017-08-04 | 内蒙古高远工程科技发展有限公司 | A kind of modified pitch with good anti-rut behavior and preparation method thereof |
| CN114573993B (en) * | 2019-04-18 | 2023-05-23 | 重庆市智翔铺道技术工程有限公司 | Polymer alloy for paving steel bridge deck and preparation method thereof |
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| CN1644625A (en) * | 2004-12-27 | 2005-07-27 | 西安理工大学 | Modified asphalt for high graded road and dam, its production thereof |
| CN101275029A (en) * | 2007-03-30 | 2008-10-01 | 上海群康沥青科技有限公司 | High-property low-cost modified asphalt |
| CN102770494A (en) * | 2010-02-11 | 2012-11-07 | Icl性能产品有限合伙公司 | Polymer-modified asphalt with a crosslinking agent and methods of preparing |
| CN103013143A (en) * | 2012-12-13 | 2013-04-03 | 肖菁 | High-elasticity modulus fiber composite asphalt |
| CN103554937A (en) * | 2013-11-18 | 2014-02-05 | 宁波市政工程建设集团股份有限公司 | Anti-rut agent, asphalt material added with anti-rut agent and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004091685A (en) * | 2002-08-30 | 2004-03-25 | Toray Ind Inc | Polyphenylene sulfide resin composition and its molded product |
| JP2014162800A (en) * | 2013-02-21 | 2014-09-08 | Toray Ind Inc | Asphalt composition |
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2014
- 2014-11-18 CN CN201410653081.5A patent/CN104312179B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1644625A (en) * | 2004-12-27 | 2005-07-27 | 西安理工大学 | Modified asphalt for high graded road and dam, its production thereof |
| CN101275029A (en) * | 2007-03-30 | 2008-10-01 | 上海群康沥青科技有限公司 | High-property low-cost modified asphalt |
| CN102770494A (en) * | 2010-02-11 | 2012-11-07 | Icl性能产品有限合伙公司 | Polymer-modified asphalt with a crosslinking agent and methods of preparing |
| CN103013143A (en) * | 2012-12-13 | 2013-04-03 | 肖菁 | High-elasticity modulus fiber composite asphalt |
| CN103554937A (en) * | 2013-11-18 | 2014-02-05 | 宁波市政工程建设集团股份有限公司 | Anti-rut agent, asphalt material added with anti-rut agent and preparation method thereof |
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